* {
  margin: 0;
  padding: 0;
}
body {
  background: linear-gradient(#ed080b, #eee0af) no-repeat;
  min-height: 100vh;
}
h1 {
  font-size: 28px;
  text-align: center;
  padding: 20px;
  color: #fee5a5;
}
.input-wrap {
  width: 800px;
  margin: 40px auto;
  color: #fff;
  text-align: center;
}
input,
button {
  padding: 6px 10px;
  border: 1px solid #eee0af;
  border-radius: 4px;
}
input:focus {
  outline: none;
}
button {
  cursor: pointer;
}
.cert {
  width: 500px;
  margin: 40px auto;
  border: 10px solid #eee0af;
  position: relative;
}
.cert img {
  width: 500px;
  height: auto;
}
.hide {
  display: none;
}
.down {
  background: #2e3848;
  color: #fff;
}
.file {
  width: 100px;
}


.menus{
  position: absolute;
  left: -130px;
  top: -10px;
  background-color: #fff;
}
.menus li{
  padding: 10px 20px;
  border-bottom: 1px solid #ddd;
  list-style: none;
  cursor: pointer;
}
.menus li:hover{
  background: #000;
  color: #Fff;
}
.menus li.active{
  background: #000;
  color: #Fff;
}